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488642311 = 19915672
BaseRepresentation
bin11101001000000…
…001011100000111
31021001110121020101
4131020001130013
52000043023221
6120253144531
715052251103
oct3510013407
91231417211
10488642311
1123090a223
1211778b147
137a309581
1448c7a903
152cd72d91
hex1d201707

488642311 has 6 divisors (see below), whose sum is σ = 491411400. Its totient is φ = 485876556.

The previous prime is 488642299. The next prime is 488642317. The reversal of 488642311 is 113246884.

It is not a de Polignac number, because 488642311 - 223 = 480253703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488642317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311050 + ... + 312616.

It is an arithmetic number, because the mean of its divisors is an integer number (81901900).

Almost surely, 2488642311 is an apocalyptic number.

488642311 is a deficient number, since it is larger than the sum of its proper divisors (2769089).

488642311 is an frugal number, since it uses more digits than its factorization.

488642311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333 (or 1766 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 488642311 is about 22105.2552801364. The cubic root of 488642311 is about 787.6447025939.

The spelling of 488642311 in words is "four hundred eighty-eight million, six hundred forty-two thousand, three hundred eleven".

Divisors: 1 199 1567 311833 2455489 488642311